The purpose of generating and releasing this point cloud was to provide a basis for additional products (digital elevation maps and orthophoto mosaics) and for use in researching methods of automatic point-cloud classification. The broader goal of the project was to evaluate the quality of images and photogrammetric products and evaluate the cost and feasibility of mapping from UAS images.
* Reconstruction uncertainty - 10 (no units) * Projection accuracy - 9 (no units) * Reprojection error - 0.3 (pixels)The marker error for the ground control points was reduced to 0.021 m (0.188 pixels), and the SUWE increased from the initial value of 0.146 to 0.275.
Are there legal restrictions on access or use of the data?
Use_Constraints:Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
|Data format:||There is one zip file that contains the unclassified point cloud in .LAZ format and the FGDC CSDGM metadata in .XML format. in format LAZ Size: 4000|
These files require software capable of opening binary LAZ files.